JUMO CTI-500 Operating Instructions Manual
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JUMO CTI-500 Operating Instructions Manual

Inductive conductivity/concentration and temperature transmitter with switch contacts
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JUMO CTI-500
Inductive Conductivity/Concentration and
Temperature Transmitter with switch contacts
Type 202755
Operating Instructions
20275500T90Z001K000
V5.01/EN/00444870

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Summary of Contents for JUMO CTI-500

  • Page 1 JUMO CTI-500 Inductive Conductivity/Concentration and Temperature Transmitter with switch contacts Type 202755 Operating Instructions 20275500T90Z001K000 V5.01/EN/00444870...
  • Page 2 WARNING: A sudden failure of the instrument or of a sensor connected to it could result in dangerous overdosing. Please take suitable precautionary measures for this case. All the nececssary settings are described in this manual. However, if any difficul- ties should arise during start-up, please do not carry out any unauthorized mani- pulations.

  • Page 3: Table Of Contents

    Contents Typographical conventions ............5 Warning signs ....................5 Note signs ....................5 General ..................6 Preface ......................6 Design of the measuring transmitter ............6 Inductive conductivity measurement ........7 Area of application ..................7 Function .......................8 Identifying the device version ..........9 Nameplate ....................9 Order details ....................10 Device description ..............
  • Page 4 Contents 10.2 Principle of operation .................33 10.3 Principle of operation .................35 10.4 Measurement mode ...................36 10.5 Operator level .....................36 10.6 Administrator level ..................44 10.7 Calibration level ..................46 10.8 The dilution function ...................47 Calibration ................51 11.1 General .......................51 11.2 Calibrating the relative cell constant ............51 11.3 Calibrating the temp.

  • Page 5: Typographical Conventions

    1 Typographical conventions Warning signs Danger This symbol is used when there may be danger to personnel if the instructions are ignored or not followed correctly! Caution This symbol is used when there may be damage to equipment or data if the instructions are ignored or not followed correctly! Note signs Note...

  • Page 6: General

    2 General Preface Please read these operating instructions before commissioning the instrument. Keep the manual in a place that is accessible to all users at all times. Design of the measuring transmitter Examples Head-mounted version: Split version: Transmitter combined with Transmitter with conductivity sensor, separate sensor,...

  • Page 7: Inductive Conductivity Measurement

    3 Inductive conductivity measurement Area of application General The inductive measurement method permits largely maintenance-free acquisition of the specific conductivity, even in difficult media conditions. Unlike the conductive measurement method, problems such as electrode decomposition and polarization do not occur. Brief The instrument is used for the measurement/control of conductivity or description...

  • Page 8: Function

    3 Inductive conductivity measurement Function of the The transmitter has been designed for use on site. A rugged housing protects transmitter the electronics and the electrical connections from corrosive environmental conditions (IP67 enclosure). As standard, the device has one analog signal output each for conductivity/concentration and temperature respectively.

  • Page 9: Identifying The Device Version

    4 Identifying the device version Nameplate On the transmitter The nameplate is affixed to the case. On the separate sensor The nameplate (flag tag) is affixed to the connecting cable. Contents The nameplate contains important information. This includes: Description Description on the Example nameplate Device type...

  • Page 10: Order Details

    4 Identifying the device version Order details 4.2.1 Head-mounted transmitter (1) Basic types 202755/10 JUMO CTI-500 Head transmitter without display/keyboard, consisting of transmitter with permanently mounted sensor 202755/15 JUMO CTI-500 Head transmitter with display/keyboard (2) Process connection PVC union nut G 1 ½ A Stainless steel union nut G 1 ½...
  • Page 11 (cable length: 10 m) 202755/65 JUMO CTI-500 transmitter with display/keyboard with sensor (cable length: 10 m) 202755/80 JUMO CTI-500 replacement sensor with 10 m cable without transmitter, including calibration set (3) Process connection not available 2, 8 PVC union nut G 1 ½ A Stainless steel union nut G 1 ½...
  • Page 12 4 Identifying the device version The PC setup program is required for programming the instrument. A tee is not included in delivery. Mounting items (union/ring nuts, holding clamp) are not included in delivery. If required, please order additionally. If required, order extra code /580 Show type extension codes in succession separated by a comma.

  • Page 13: Device Description

    5 Device description Transmitter technical data 5.1.1 General A/D converter resolution: 15-bit sampling time: 500 msec = 2 measurements/sec Supply For operation in SELV- and PELV-circuits! As standard: 19 — 31 V DC (24 V DC nominal), with reverse-polarity protection extra code 844: AC 24 V ±10%, 50...60 Hz ripple:...
  • Page 14 5 Device description 5.1.2 Conductivity/ concentration transmitter Concentration - NaOH (caustic soda) measurement 0 — 15 % by weight or 25 — 50 % by weight (implemented in - HNO (nitric acid); check chemical resistance of the sensor ! the device 0 —...

  • Page 15: Temperature Compensation

    5 Device description 5.1.3 Temperature transmitter Temperature manually -20.0 — 25.0 — 150°C/°F acquisition automatically Temperature -20 — 150°C/°F measurement range Characteristic linear ≤ 0.5% of range Tolerance Output signal 0 — 10 V / 10 — 0 V for temperature 2 —...
  • Page 16 5 Device description The conductivity of the water is compensated in the range from 0°C to 36°C. - non-linear (learning function, see special functions) Here, the actual graph of the temperature coefficient during a heating-up or cooling-down process is determined by the transmitter. 5.1.5 Sensor Material PP (polypropylene)
  • Page 17 5 Device description 5.1.6 Approvals/approval marks Approval mark DNV GL Testing agency DNV GL Certificate/ TAA00001W9 certification number Inspection DNV GL Class Guideline CG-0339 basis Valid for Type 202755/10 Type 202755/15...

  • Page 18: Mounting

    6 Mounting General Mounting site Make sure that the site is readily accessible, for calibration at a later time. The fixing must be secure and free from vibration. Avoid direct sunlight! Take care that there is adequate flow through and around the sensor (1) ! If the device is to be mounted in a pipeline, there must be at least 20 mm clearance between the sensor and the wall of the pipe.

  • Page 19: Head-Mounted Transmitter

    6 Mounting Head-mounted transmitter Installation variations...

  • Page 20: Split Version (Separate Sensor)

    6 Mounting Split version (separate sensor) Transmitter head Drilling jig for wall-mounting...
  • Page 21 6 Mounting Sensor component...
  • Page 22 6 Mounting 6.3.1 Separate sensor as immersion model Optional accessory: Flange DN 32, part no. 00083375 Fixing screw Feststellschraube Sliding Flansch flange verschiebbar Ø18 Ø125 Ø165 Optional accessory: Flange DN 50, part no. 00083376...
  • Page 23 6 Mounting 6.3.2 Examples of installation Version with Version with process connection 168 process connection 168 Insert nut Union nut (PVC) Union nut (PVC) G1 / " Insert nut G1 / " (PVC) Tee 90° DN32 (PVC) Tee 90° DN40 (PVC) Optional accessories part no.: 00439247 Optional accessories...
  • Page 24 6 Mounting 6.3.3 Pipe assembly set The screws (1) M5 x 30 are used for pipe diameters from 30 to 40 mm. The screws (2) M5 x 40 are used for pipe diameters from 40 to 50 mm. The pipe assembly set is also suitable for horizontal pipes..

  • Page 25: Installation

    7 Installation The electrical connection must only be carried out by properly qualified personnel! The choice of cable, the installation and the electrical connection must conform to the requirements of VDE 0100 “Regulations on the Installation of Power Circuits with Nominal Voltages below 1000 V” or the appropriate local regulations.

  • Page 26: General

    7 Installation General Opening the operating unit It is only necessary to open the housing for devices with cable glands. Devices with M12 plug/socket connectors should not be opened! Remove four screws (1) and take off the cover Connecting up the cables To connect the single conductors, pull off the pluggable screw terminals (1) in the operating unit.
  • Page 27 7 Installation Wiring For devices with a separate sensor (type code extensions (2) /60 or /65), the transmitter and detached sensor are matched to one another at the factory! When connecting the components, please note that the serial number of the external sensor (marked on the label attached to the connecting cable) must match the serial number marked on the nameplate of the transmitter! Caution:...
  • Page 28 7 Installation Connections Connections Screw Conn./pin for the terminals transmitter Supply voltage Supply voltage 1 L+ I / 1 19 — 31 V DC 2 L- I / 2 (with reverse-polarity protection) Outputs Analog signal output I / 3 Conductivity/concentration I / 4 0 —...

  • Page 29: Setup Program

    8 Setup program Function Configurable The setup program, which is available as an option, can be used for easy parameters adaptation of the transmitter to specific requirements. - Setting the measurement range and the range limits. - Setting the response of the output to an out-of-range signal. - Setting the functions of the switched outputs K1 and K2.

  • Page 30: Commissioning

    9 Commissioning The transmitter has been tested in the factory for fault-free functioning, and is delivered ready for operation. Head-mounted transmitter or split version Mounting the device, see "Mounting", Page 18. Connecting the device, see "Installation", Page 25. For devices with a separate sensor (type code extensions (2) /60 or /65), the transmitter and detached sensor are matched to one another at the factory! When connecting the components, please note that the serial number of the external sensor (marked on the label attached to the connecting cable) must...

  • Page 31: Operation

    10 Operation 10.1 Controls Device without LC display Device with LC display Grafik LC display, back-lit key, confirm entries/select menu key, cancel entry without saving/cancel calibration go back one EXIT menu level key, increase value/step on in selection key, reduce value/step on in selection LEDs K1 and K2 show the states of the switched outputs.
  • Page 32 10 Operation LC display (11) (10) Output K1 is active Output mode - Hand (manual operation) Output K2 is active - Hold (hold operation) Binary input 1 is Conductivity/concentration activated measurement Binary input 2 is Unit for conductivity/ activated concentration measurement Keypad is inhibited (10) Temperature of the medium...

  • Page 33: Principle Of Operation

    10 Operation 10.3 Principle of operation 10.3.1 Operation in levels Measurement mode, see Chapter 10.4 "Principle of operation" page 35 OPERATOR LEVEL, see chapter 10.6 "Operator level", page 36 INPUT CONDUCTIVITY MEASUREMENT RANGE 1...4 TEMPERATURE COMPENSATION TEMP. COEFFICIENT 1...4 REFERENCE TEMPERATURE REL.
  • Page 34 10 Operation DEVICE DATA LANGUAGE CONTRAST LIGHTING INVERTING LCD ADMINISTR. LEVEL, see chapter 10.6, "Operator level", page 36 Password PARAMETER LEVEL, see chapter 10.6.1 "CONDUCTIVITY IN" (conduc- tivity input) page 37 INPUT CONDUCTIVITY OUTPUT CONDUCTIVITY INPUT TEMPERATURE OUTPUT TEMPERATURE OUTPUT BINARY 1 OUTPUT BINARY 2 INPUT BINARY 1 INPUT BINARY 2...

  • Page 35: Principle Of Operation

    10 Operation 10.4 Principle of operation Operation in levels...

  • Page 36: Measurement Mode

    10 Operation 10.5 Measurement mode Representation In measurement mode, the conductivity is shown (compensated for the reference temperature) or the concentration and temperature of the medium being measured. MEASUREMENT -> Measurement mode 20.5°C -> Temperature of the sample medium 203 mS/cm -> conductivity of the medium (compensated for the reference/comparison temperature –...
  • Page 37 10 Operation 10.6.1 CONDUCTIVITY IN (Conductivity input) RANGE 1 — 4 0 — 500 µS/cm 0 — 1000 µS/cm 0 — 2000 µS/cm 0 — 5000 µS/cm 0 — 10 mS/cm 0 — 20 mS/cm 0 — 50 mS/cm 0 — 100 mS/cm 0 —...
  • Page 38 10 Operation CUSTOMIZED (values can only be entered by using the optional setup program) CONC. MEAS. For HNO RANGE 0 — 25 % BY WEIGHT 36 — 82 % BY WEIGHT For NaOH 0 — 15 % BY WEIGHT 25 — 50 % BY WEIGHT OFFSET -100 to 0 to +100 mS/cm (+/- 10% of range) FILTER TIME...
  • Page 39 10 Operation DURING ALARM (0 mA / 0 V / 3.4 mA / 1.4 V) HIGH (22 mA / 10.7 V) SAFE VALUE (depending on the signal type) DURING CALIBRATION MOVING FROZEN SAFE VALUE SAFE VALUE 0.0 — 4.0 — 22.0 mA (depending on the signal type) 0 —...
  • Page 40 10 Operation 10.6.4 TEMPERATURE OUT SIGNAL TYPE 0 — 20 mA 4 — 20 mA 20 — 0 mA 20 — 4 mA 0 — 10 V 2 — 10 V 10 — 0 V 10 — 2 V SCALING START -20.0 to 0.0°C = 4 mA (depending on the signal type) SCALING END +200 to 150.0°C = 20 mA (depending on the signal type)
  • Page 41 10 Operation 10.6.5 BINARY OUTPUT 1 and BINARY OUTPUT 2 FUNCTION NO FUNCTION MIN. CONDUCT. MAX. CONDUCT. LK1 CONDUCT. LK2 CONDUCT. MIN. TEMP. MAX. TEMP. LK1 TEMP. LK2 TEMP. CALIB. TIMER ALARM MAX limit comparator MIN limit comparator LK1 alarm window LK2 alarm window Pulse contact Pulse contact...
  • Page 42 10 Operation LIMIT -20.0 — 0.0 — 999.0 (depending on the function, see above) HYSTERESIS 0.0 — 0.5 — 999.0 (depending on the function, see above) SPACING 0.0 — 999.0 (depending on the function, see above) MANUAL MODE FOR HOLD INACTIVE ACTIVE FROZEN...
  • Page 43 10 Operation 10.6.6 BINARY INPUT 1 and BINARY INPUT 2 FUNCTION NO FUNCTION HOLD/LOCK KEY RANGE/TEMPCO. DILUTION Setting parameters Binary input 1 Binary input 2 Range / Range 1 / open open temperature TC 1 coefficient Range 2 / closed open changeover TC 2...

  • Page 44: Administrator Level

    10 Operation 10.6.8 DEVICE DATA LANGUAGE GERMAN ENGLISH FRENCH ITALIAN DUTCH POLISH PORTUGUESE RUSSIAN SWEDISH SPANISH Entering the password 7485 in the administrator level will reset the operating language to English. CONTRAST 0 — 6 — 11 LIGHTING IF OPERATED (approx.
  • Page 45 10 Operation Levels within administrator level 10.7.1 Parameter level The administrator can edit all parameters for the operator level in this level. The structure “Parameter level” within the administrator level is identical to the operator level, see "Operator level", Page 36 and the following. 10.7.2 Enable level In this level, the administrator can define which parameters can be altered/ edited by the operator in the operator level.

  • Page 46: Calibration Level

    10 Operation 10.8 Calibration level All the calibrations that have been enabled by the administrator (administrator level) can be carried out in this level. Press the key for at least 3 seconds. Use the key to select CALIBRATION LEVEL. 10.8.1 REL. CELL CONSTANT (relative cell constant) If this function has been enabled by the administrator, then the operator can calibrate the relative cell constant of the device here;...

  • Page 47: The Dilution Function

    10 Operation 10.9 The dilution function Brief For cooling water, the conductivity is used to deduce the total salt content. If a description conductivity limit is reached (at the maximum permissible salt content/ concentration), then the cooling water must be diluted. A dilution valve is opened, the concentrated water flows out, and is replaced by fresh water.
  • Page 48 10 Operation - The dilution factor can be adjusted through binary input 1, over a range 1 — 50% below the limit value. The preset value is 10% below the limit. 10.9.1 Stop dilution All the parameters are system-dependent, and must be adjusted to suit system requirements.
  • Page 49 10 Operation Use the key to select DILUTION; use the key to confirm the selection. Change to the operator level, using the key. EXIT Use the key to select DILUTION. Confirm the selection with the key. Use the and/or keys to set the dilution factor in the range from 1 —...
  • Page 50 10 Operation Use the key to select LOCK TIME; use the key to confirm the selection. Set the lock time with the keys in the range from 0:00:00 — 00:01:00— 18:00:00 H:M:S. Confirm the setting with the key. If there is an interruption in the supply voltage during dilution, the function will be canceled.

  • Page 51: Calibration

    11 Calibration 11.1 General The device offers various calibration options to increase the precision. The conductivity sensor should be cleaned and calibrated at regular intervals (depending on the medium being measured). The K1 LED blinks during calibration. 11.2 Calibrating the relative cell constant In order to meet enhanced demands for precision, the cell constant must first be calibrated.

  • Page 52: Calibrating The Temp. Coefficient Of The Sample Solution

    11 Calibration Use the keys to select REL. CELL CONSTANT; use the to confirm the selection. When the measurement is stable, press the key. Use the keys to correct the indicated uncompensated conductivity to match the known value for the reference solution. Press The relative cell constant calculated by the device is displayed.
  • Page 53 11 Calibration - The sensor must be connected to the transmitter (applies to the split version). - The transmitter is in the measurement mode. Immerse the conductivity sensor in a sample of the solution to be measured. Press the key for at least 3 seconds. Use the keys to select CALIBRATION LEVEL;...
  • Page 54 11 Calibration The LC display now shows - at top (1): the selected working temperature (blinking) - in the middle (2): the reference temperature (blinking) - below (3): the present sensor temperature (steady) Warm up the sample medium until both the reference and the working temperatures have been reached (the corresponding values no longer blink).
  • Page 55 11 Calibration 11.3.2 Non-linear temperature coefficient (ALPHA) General Since the temperature coefficient of some media is not constant over a sizeable temperature range, the device provides the option of subdividing a temperature range (T to T ) into 5 sections. A different TC value can be Start used for compensation in each of these range sections.
  • Page 56 11 Calibration TC curve Temperature The present temperature of the medium is applied to the TC curve to compensation determine the corresponding temperature coefficient, with the TC see "TC curve", Page 56. curve Intermediate values, e.g. (α at T ) between two known values (α at T ) and (α...
  • Page 57 11 Calibration The rate of change of the temperature must not exceed - 10°C / min. for an exposed temperature sensor, and - 01°C / min for an internal temperature sensor. Requirements - The supply voltage for the device must be present. see Chapter 7 "Installation", Page 25ff.
  • Page 58 11 Calibration Use the keys to enter the start temperature; confirm with the key. The start temperature must be lower than the reference temperature (25.0°C). Use the keys to enter the end temperature; confirm with the key. The end temperature must be at least 20°C above the start temperature.
  • Page 59 11 Calibration The next target temperature is displayed as blinking. During calibration, the rate of change of temperature for the sample solution must not exceed 10°C/min for the device with exposed temperature sensor, or 1°C/min for the device with an internal temperature sensor. As soon as one of the target temperatures has been reached, its display becomes static (no longer blinking).

  • Page 60: Maintenance

    12 Maintenance 12.1 Cleaning the conductivity sensor Do not use solvents. Hard-to-remove crusts and deposits can be softened and removed with dilute hydrochloric acid. Observe the safety regulations! Deposits Deposits on the sensor section can be removed with a soft brush (e.g. a bottle brush).

  • Page 61: Eliminating Faults And Malfunctions

    13 Eliminating faults and malfunctions Error Problem Possible cause Measures possibilities no measurement display supply voltage supply voltage missing should be checked, current output also check terminals measurement display sensor not immersed in top up the reservoir 000 or medium, current output 4 mA reservoir level too low...
  • Page 62 13 Eliminating faults and malfunctions 13.1.1 Resistance loop test Position of the resistance loop During calibration, do not touch the sensitive part of the cell or put it down on any surface, otherwise the measurement will be falsified. Lead a wire through the cell (see diagram) Connect a resistor R to the wire Calculating the Formula for calculating the resistance of the resistance loop:...
  • Page 63 13 Eliminating faults and malfunctions Example 2 The measuring transmitter is to show 500 mS: ·6.25 1/cm Ω = 112.5 500·10 S/cm To achieve a display of 500 mS/cm, the resistance loop (with 3 turns) must have a resistance of 112.5 Ohm. Precalculated values Number of...
  • Page 64 13 Eliminating faults and malfunctions 13.1.2 Reference liquid test Immerse in test solution Test Prepare the conductivity test solution in a container of adequate size. sequence Wire up the device, see Chapter 7 "Installation", Page 25. Select the range appropriate to the conductivity test solution, see Chapter 10.6.1 "CONDUCTIVITY IN (Conductivity input)", Page 37 ->...
  • Page 65 13 Eliminating faults and malfunctions 13.1.3 Reference measuring instrument test Immerse in test solution Test Prepare the conductivity test solution in a container of adequate size. sequence Wire up the device, see Chapter 7 "Installation", Page 25. Select the range appropriate to the conductivity test solution, see Chapter 10.6.1 "CONDUCTIVITY IN (Conductivity input)", Page 37 ->...

  • Page 66: Appendix

    14 Appendix 14.1 Before configuration If a number of instrument parameters have to be modified in the instrument, then it is advisable to note them in the table below, and then modify these parameters in the sequence given. The following list shows the maximum number of parameters that can be altered.
  • Page 67 14 Appendix Parameter Selection / value range see page Factory setting adjustment Scaling start 0 — 90% = 4 mA (e.g.) of range span Scaling end 100 — 10% = 20 mA (e.g.) of range span During alarm high safe value During calibration moving frozen...
  • Page 68 14 Appendix Parameter Selection / value range see page Factory setting adjustment During calibration moving frozen safe value Safe value 0.0 — 4.0 — 22.0 mA Manual mode Manual value 0.0 — 4.0 — 22.0 mA Binary output 1 or binary output 2 Function No function Conductivity MIN contact...
  • Page 69 14 Appendix Parameter Selection / value range see page Factory setting adjustment Device data Language German English French Italian Dutch Polish Portuguese Russian Swedish Spanish Contrast 0 — 6 — 11 Lighting during operation LCD inverse...

  • Page 70: China Rohs

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  • Page 72 JUMO GmbH & Co. KG JUMO Instrument Co. Ltd. JUMO Process Control, Inc. Street address: JUMO House 6733 Myers Road Moritz-Juchheim-Straße 1 Temple Bank, Riverway East Syracuse, NY 13057, USA 36039 Fulda, Germany Harlow, Essex, CM20 2DY, UK Delivery address:...

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